正确答案: C

be regarded as a vessel

题目：If a seaplane is not used as a means of transpiration on water but is capable of being used so，it shall ().

解析：C

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举一反三的答案和解析：

[单选题]紧迫局面一般可理解为________。

两船距离接近到单凭一船行动已不能在安全距离上驶过

[单选题]The term “moderate speed” was previously interpreted as meaning a speed which would enable a vessel ______ within half the range of visibility.

to be stopped

[单选题]根据“直航船规则”规定“不应对在本船左舷的船采取向左转向”适用于________。

交叉相遇局面中的直航船

[单选题]A crack in a cylinder liner can be caused by

restricted cooling water passages

[单选题]SOLAS公约第Ⅹ章中，着重对______的安全进行了适用的规定。

高速船

[单选题]当日用海、淡水压力柜内水位较低时应()

放出部分压缩空气

[单选题]离心泵输送冷水时工作正常，输送热水时发生频率较高的振动和噪声，有可能是发生了( )现象。

汽蚀

[单选题]低位肠梗阻时，呕吐出现______。

晚而不频繁

[单选题]船舶在沿岸、岛礁区、海峡等水域航行主要受()流的影响。

潮流